Send error code when couldn't get bib data

Means the Identify screen shows up red!
format
Merge pull request #254 from nla/hr-bibRecord-errors

Bib Record Details error message
AmberDB 1.1.31
Fix offset in Identify

and make changing the holding dirty the form
amberdb 1.1.34
add breaks before the bottom of the page
Merge pull request #255 from nla/hr-css

Fix offset in Identify
Merge branch 'master' into DocworksImport